:root{
  --navy:#0A2540;
  --navy-2:#0E2E54;
  --blue:#2563EB;
  --blue-soft:#3B82F6;
  --gold:#C9A24B;
  --gold-soft:#E3C77E;
  --cyan:#22A6B8;
  --ink:#15202B;
  --muted:#5B6B7C;
  --bg:#ffffff;
  --soft:#F4F7FB;
  --border:#E3E9F0;
  --radius:16px;
  --shadow:0 18px 48px rgba(10,37,64,.10);
  --shadow-sm:0 8px 24px rgba(10,37,64,.08);
  --maxw:1180px;
  --font:"PingFang SC","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--bg);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
.container{max-width:var(--maxw);margin:0 auto;padding:0 24px}
section{scroll-margin-top:84px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:600;padding:13px 26px;border-radius:999px;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease;cursor:pointer;border:1px solid transparent;
}
.btn--sm{padding:9px 18px;font-size:14px}
.btn--gold{background:linear-gradient(135deg,var(--gold),#B8902F);color:#fff;box-shadow:0 10px 24px rgba(201,162,75,.35)}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 14px 30px rgba(201,162,75,.45)}
.btn--ghost{background:rgba(255,255,255,.08);color:#fff;border-color:rgba(255,255,255,.45)}
.btn--ghost:hover{background:rgba(255,255,255,.18);transform:translateY(-2px)}
.hero .btn--ghost{border-color:rgba(10,37,64,.25);color:var(--navy)}
.hero .btn--ghost:hover{background:rgba(10,37,64,.06)}

/* ---------- 导航 ---------- */
.nav{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.82);backdrop-filter:blur(12px);border-bottom:1px solid var(--border)}
.nav__inner{display:flex;align-items:center;justify-content:space-between;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;color:var(--navy)}
.brand__mark{display:flex}
.brand__text b{color:var(--blue)}
.nav__links{display:flex;gap:30px}
.nav__links a{font-size:15px;color:var(--ink);font-weight:500;position:relative;padding:6px 0}
.nav__links a::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--gold);transition:width .25s}
.nav__links a:hover::after,.nav__links a.active::after{width:100%}
.nav__actions{display:flex;align-items:center;gap:14px}
.nav__toggle{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:6px}
.nav__toggle span{width:24px;height:2px;background:var(--navy);border-radius:2px;transition:.25s}

/* ---------- Hero ---------- */
.hero{position:relative;color:#fff;overflow:hidden;padding:96px 0 110px}
.hero__bg{position:absolute;inset:0;background:
  radial-gradient(900px 500px at 80% -10%,rgba(37,99,235,.45),transparent 60%),
  radial-gradient(700px 500px at 0% 100%,rgba(201,162,75,.30),transparent 55%),
  linear-gradient(160deg,#0A2540 0%,#0E2E54 55%,#123a6b 100%);}
.hero__bg::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);background-size:46px 46px;mask-image:radial-gradient(circle at 50% 30%,#000,transparent 80%)}
.hero__inner{position:relative;text-align:center;max-width:820px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;letter-spacing:.5px;color:var(--gold-soft);border:1px solid rgba(201,162,75,.4);padding:6px 16px;border-radius:999px;background:rgba(201,162,75,.08)}
.eyebrow .dot{width:7px;height:7px;border-radius:50%;background:var(--gold);box-shadow:0 0 0 4px rgba(201,162,75,.25)}
.hero__title{font-size:clamp(40px,6vw,68px);font-weight:800;margin:22px 0 8px;letter-spacing:-1px}
.grad{background:linear-gradient(120deg,#E3C77E,#fff 60%,#9ec3ff);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__lead{font-size:clamp(18px,2.4vw,24px);font-weight:600;color:#eaf1fb}
.hero__desc{font-size:17px;color:#b9c9dd;margin-top:6px}
.hero__cta{display:flex;gap:16px;justify-content:center;margin:34px 0 28px;flex-wrap:wrap}
.hero__chips{list-style:none;display:flex;flex-wrap:wrap;gap:10px;justify-content:center}
.hero__chips li{font-size:14px;padding:8px 16px;border-radius:999px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18);color:#eaf1fb}
.hero__badge{display:inline-flex;align-items:center;gap:9px;margin-top:30px;font-size:13.5px;color:#cdddec;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.14);padding:8px 16px;border-radius:999px}

/* ---------- 数字实力 ---------- */
.stats{background:var(--navy);color:#fff;padding:46px 0}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;text-align:center}
.stat__num{font-size:clamp(34px,4.4vw,48px);font-weight:800;color:#fff;display:flex;align-items:baseline;justify-content:center}
.stat__plus{color:var(--gold);font-size:.6em;margin-left:2px}
.stat__label{margin-top:8px;font-size:14px;color:#a9bcd0}

/* ---------- 通用 section ---------- */
.section{padding:88px 0}
.section--soft{background:var(--soft)}
.section__head{text-align:center;max-width:760px;margin:0 auto 52px}
.kicker{display:inline-block;font-size:14px;font-weight:700;letter-spacing:2px;color:var(--gold);text-transform:uppercase;margin-bottom:12px}
.section__head h2{font-size:clamp(28px,3.6vw,40px);font-weight:800;color:var(--navy);letter-spacing:-.5px}
.section__sub{margin-top:14px;color:var(--muted);font-size:17px}

/* ---------- 它是什么 ---------- */
.what__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card--feature{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px 28px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.card--feature:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.card__icon{width:64px;height:64px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;color:var(--blue);background:linear-gradient(135deg,#eaf1ff,#f6f0df);margin-bottom:18px}
.card--feature h3{font-size:21px;color:var(--navy);margin-bottom:10px}
.card--feature p{color:var(--muted);font-size:15.5px}
.callout{margin-top:32px;background:linear-gradient(135deg,#0A2540,#123a6b);color:#eaf1fb;border-radius:var(--radius);padding:22px 28px;font-size:15.5px;text-align:center}

/* ---------- 能力场景 ---------- */
.scene__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.scene{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:30px 24px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s;border-top:3px solid var(--gold)}
.scene:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.scene__ico{width:56px;height:56px;border-radius:14px;background:var(--soft);display:flex;align-items:center;justify-content:center;margin-bottom:16px}
.scene h3{font-size:19px;color:var(--navy);margin-bottom:10px}
.scene p{color:var(--muted);font-size:14.5px}

/* ---------- 核心优势 ---------- */
.adv__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.adv{background:linear-gradient(160deg,#fff,#fbfcfe);border:1px solid var(--border);border-radius:var(--radius);padding:36px 30px;position:relative;overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.adv::before{content:"";position:absolute;right:-40px;top:-40px;width:140px;height:140px;border-radius:50%;background:radial-gradient(circle,rgba(201,162,75,.16),transparent 70%)}
.adv:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.adv__tag{display:inline-block;font-size:30px;font-weight:800;color:var(--gold);opacity:.55;margin-bottom:8px}
.adv h3{font-size:21px;color:var(--navy);margin-bottom:12px;position:relative}
.adv p{color:var(--muted);font-size:15.5px;position:relative}

/* ---------- 客户价值 ---------- */
.value__block{margin-bottom:60px}
.value__block:last-child{margin-bottom:0}
.value__title{font-size:clamp(22px,3vw,30px);color:var(--navy);font-weight:800}
.value__sub{color:var(--muted);margin-top:6px;font-size:16px}
.value__intro{color:var(--ink);margin-top:14px;font-size:15.5px;max-width:760px}
.value__b-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin:28px 0}
.vb{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow-sm)}
.vb__big{font-size:40px;font-weight:800;color:var(--blue);line-height:1}
.vb__big span{color:var(--gold);font-size:.6em}
.vb h4{margin:12px 0 8px;font-size:17px;color:var(--navy)}
.vb p{color:var(--muted);font-size:14.5px}
.compare{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:8px}
.compare__col{border-radius:14px;padding:22px 26px;border:1px solid var(--border)}
.compare__col--old{background:#fff;color:var(--muted)}
.compare__col--new{background:linear-gradient(135deg,#0A2540,#123a6b);color:#eaf1fb}
.compare__tag{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1px;padding:4px 12px;border-radius:999px;margin-bottom:8px}
.compare__col--old .compare__tag{background:var(--soft);color:var(--muted)}
.compare__col--new .compare__tag{background:rgba(201,162,75,.2);color:var(--gold-soft)}
.value__c-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:28px}
.vc{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;box-shadow:var(--shadow-sm);border-left:4px solid var(--cyan)}
.vc h4{font-size:18px;color:var(--navy);margin-bottom:10px}
.vc p{color:var(--muted);font-size:14.5px}

/* ---------- 对比表 ---------- */
.table-wrap{overflow-x:auto;border-radius:var(--radius);box-shadow:var(--shadow);border:1px solid var(--border);background:#fff}
.cmp-table{width:100%;border-collapse:collapse;min-width:640px}
.cmp-table th,.cmp-table td{padding:16px 22px;text-align:left;font-size:15px;border-bottom:1px solid var(--border)}
.cmp-table thead th{background:var(--navy);color:#fff;font-weight:600;font-size:15.5px}
.cmp-table th:first-child{border-top-left-radius:var(--radius)}
.cmp-table th:last-child{border-top-right-radius:var(--radius)}
.cmp-table td:first-child{font-weight:600;color:var(--navy);background:var(--soft)}
.cmp-table .hl{background:#FFF8E8;color:var(--navy);font-weight:600}
.cmp-table thead .hl{background:var(--gold);color:#fff}
.table-note{margin-top:14px;font-size:13px;color:var(--muted)}

/* ---------- 案例 ---------- */
.cases__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.case{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:26px 24px;box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.case:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.case__head{display:flex;justify-content:space-between;align-items:center;font-size:13.5px}
.case__no{font-weight:800;color:var(--gold);letter-spacing:1px}
.case__ind{color:var(--muted)}
.case__name{font-size:20px;font-weight:700;color:var(--navy);margin:10px 0 4px}
.case__scene{font-size:14px;color:var(--blue);margin-bottom:16px}
.case__metrics{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:14px}
.case__metrics li{display:flex;justify-content:space-between;align-items:center;font-size:14.5px;padding:10px 14px;background:var(--soft);border-radius:10px}
.case__metrics b{color:var(--ink);font-weight:600}
.case__metrics span{color:var(--blue);font-weight:700}
.case__time{font-size:13px;color:var(--muted)}

/* ---------- 关于我们 ---------- */
.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:32px;align-items:stretch}
.about__left{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-sm)}
.about__stat-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px}
.about__stat-row div{border-left:3px solid var(--gold);padding-left:16px}
.about__stat-row b{display:block;font-size:30px;font-weight:800;color:var(--navy)}
.about__stat-row span{font-size:14px;color:var(--muted)}
.about__industries{margin-top:18px;font-size:15px;color:var(--ink);line-height:1.9}
.about__industries b{color:var(--navy)}
.about__right{background:linear-gradient(160deg,#0A2540,#123a6b);color:#fff;border-radius:var(--radius);padding:34px;box-shadow:var(--shadow-sm)}
.endorse__title{display:flex;align-items:center;gap:12px;font-size:21px;font-weight:800;margin-bottom:8px}
.badge-gold{background:var(--gold);color:#fff;font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px;letter-spacing:1px}
.about__right .endorse p{color:#b9c9dd;font-size:14.5px}
.endorse__list{list-style:none;margin-top:20px;display:flex;flex-direction:column;gap:14px}
.endorse__list li{font-size:14.5px;color:#eaf1fb;padding-left:22px;position:relative;line-height:1.6}
.endorse__list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--gold)}
.endorse__list b{color:var(--gold-soft)}

/* ---------- CTA ---------- */
.cta{position:relative;color:#fff;padding:96px 0;text-align:center;overflow:hidden}
.cta__bg{position:absolute;inset:0;background:
  radial-gradient(800px 460px at 50% -20%,rgba(201,162,75,.4),transparent 60%),
  linear-gradient(160deg,#0A2540,#0E2E54 60%,#123a6b)}
.cta__inner{position:relative;max-width:720px}
.cta h2{font-size:clamp(28px,4vw,44px);font-weight:800}
.cta p{margin-top:14px;color:#cdddec;font-size:17px}
.cta__btns{display:flex;gap:16px;justify-content:center;margin:30px 0 18px;flex-wrap:wrap}
.cta__contact{font-size:13.5px;color:#9fb3c9}

/* ---------- 页脚 ---------- */
.footer{background:#071a2e;color:#b9c9dd;padding:54px 0 28px}
.footer__inner{display:flex;justify-content:space-between;gap:30px;flex-wrap:wrap;align-items:flex-start}
.footer__brand .brand__text{color:#fff;font-size:18px}
.footer__brand .brand__text b{color:var(--gold-soft)}
.footer__brand p{margin-top:12px;font-size:14px;max-width:380px;color:#8ba0b8}
.footer__nav{display:flex;gap:24px;flex-wrap:wrap}
.footer__nav a{font-size:14.5px;color:#b9c9dd;transition:color .2s}
.footer__nav a:hover{color:var(--gold-soft)}
.footer__disclaimer{margin-top:36px;font-size:12.5px;color:#7d93ab;border-top:1px solid rgba(255,255,255,.08);padding-top:18px}
.footer__copy{margin-top:10px;font-size:12.5px;color:#6f86a0}

/* ---------- 动画 ---------- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:980px){
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .what__grid,.scene__grid,.adv__grid,.value__b-grid,.value__c-grid,.cases__grid{grid-template-columns:1fr 1fr}
  .about__grid{grid-template-columns:1fr}
}
@media (max-width:680px){
  .nav__links{position:fixed;top:72px;left:0;right:0;background:#fff;flex-direction:column;gap:0;padding:8px 24px 18px;border-bottom:1px solid var(--border);transform:translateY(-120%);transition:transform .3s;box-shadow:var(--shadow)}
  .nav__links.open{transform:none}
  .nav__links a{padding:14px 0;border-bottom:1px solid var(--border)}
  .nav__toggle{display:flex}
  .stats__grid,.what__grid,.scene__grid,.adv__grid,.value__b-grid,.value__c-grid,.cases__grid{grid-template-columns:1fr}
  .compare{grid-template-columns:1fr}
  .section{padding:64px 0}
  .hero{padding:72px 0 88px}
}